JP2971568B2 - Engine power generator - Google Patents
Engine power generatorInfo
- Publication number
- JP2971568B2 JP2971568B2 JP2337331A JP33733190A JP2971568B2 JP 2971568 B2 JP2971568 B2 JP 2971568B2 JP 2337331 A JP2337331 A JP 2337331A JP 33733190 A JP33733190 A JP 33733190A JP 2971568 B2 JP2971568 B2 JP 2971568B2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- engine
- generator
- reactor
- starting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/062—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for AC powered loads
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/66—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal
- H02M7/68—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters
- H02M7/72—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/79—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/797—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/08—Control of generator circuit during starting or stopping of driving means, e.g. for initiating excitation
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Control Of Eletrric Generators (AREA)
- Dc-Dc Converters (AREA)
- Inverter Devices (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明はエンジン式発電装置、特に、エンジン始動
時、発電機をエンジンスタータとして駆動するエンジン
式発電装置に関する。Description: TECHNICAL FIELD The present invention relates to an engine-type power generator, and more particularly, to an engine-type power generator that drives a generator as an engine starter when the engine is started.
第８図は従来のこの種のエンジン式発電装置の主回路
と始動用制御電源回路を示したものである。図におい
て、AGはエンジンEGによって駆動される３相交流発電
機、１は逆変換機能を有する整流回路、２は逆変換回
路、３は平滑用の電解コンデンサCD、４は始動用制御電
源回路、５はこの主回路と始動用制御電源回路を制御す
る制御回路である。Ｐは上記主回路の直流回路正極母
線、Ｎは負極母線Ｎである。FIG. 8 shows a main circuit and a starting control power supply circuit of this type of conventional engine type power generator. In the figure, AG is a three-phase AC generator driven by an engine EG, 1 is a rectifier circuit having an inversion function, 2 is an inversion circuit, 3 is an electrolytic capacitor CD for smoothing, 4 is a control power supply circuit for starting, A control circuit 5 controls the main circuit and the control power supply circuit for starting. P is a DC circuit positive bus of the main circuit, and N is a negative bus N.
逆変換機能を有する整流回路１は、逆並列ダイオード
D1を有するトランジスタQR1〜QR6をブリッジ接続して構
成されており、交流発電機AGがエンジンEGによって駆動
される発電機動作時には、３相全波整流回路を構成する
６個のダイオードD1が交流発電機AGの３相出力を整流
し、直流電力に変換する。逆変換回路２はフライホイル
ダイオードD2を有するトランジスタQI1〜QI4をブリッジ
接続して構成されたPWM方式の逆変換回路であって、制
御回路５から制御パルスＳを受けて、交流発電機AGが発
電動作をしている時の上記直流電力を単相の交流電力に
変換する。この単相交流電力は交流側端子UO1、UO2から
送出され、リクトルLoとコンデンサCoからなるLCフィル
タで平滑されて、装置の出力端子TO1、TO2を介し図示し
ない負荷に供給される。交流発電機AGの発電動作時、６
個のダイオードD1、電解コンデンサCD、逆変換回路２
は、電圧形インバータを構成する。始動用制御電源回路
４は、トランジスタQC、リアクトルLCH、ダイオードDCH
からなる昇圧チョッパ回路と、バッテリBATTを有し、こ
の昇圧チョッパ回路は発電装置の始動に際して駆動さ
れ、所望の直流電圧を電解コンデンサCDに加える。この
時、整流回路１のトランジスタQR1〜QR6のブリッジ回路
は制御回路５から制御パルスS1を受けて、インバータ動
作を行ない、この直流電圧を３相交流電圧に変換して交
流電機AGに供給する。これにより交流電機AGが電動機動
作を行ない、エンジンEGを始動させる。昇圧チョッパ回
路はエンジンEGの速度が所定速度に達するまでチョッパ
動作を継続する。エンジンEGの速度が所定速度に達する
と、始動用制御電源回路４は、動作を停止し、逆変換回
路２が逆変換動作、を開始する。始動用制御電源回路
４、電解コンデンサ３、トランジスタQR1〜QR6のブリッ
ジ回路は、装置始動時、電圧形インバータを構成する。The rectifier circuit 1 having an inverse conversion function is an anti-parallel diode
Transistors QR1 to QR6 having D1 are bridge-connected, and when the alternator AG is operating as a generator driven by the engine EG, six diodes D1 forming a three-phase full-wave rectifier circuit are used for alternating current generation. Rectifies the three-phase output of the machine AG and converts it to DC power. The inverter circuit 2 is a PWM inverter circuit configured by bridge-connecting transistors QI1 to QI4 each having a flywheel diode D2, and receives a control pulse S from the control circuit 5 so that the AC generator AG generates power. The DC power during the operation is converted into single-phase AC power. This single-phase AC power is transmitted from AC terminals UO1 and UO2, smoothed by an LC filter including a reactor Lo and a capacitor Co, and supplied to a load (not shown) via output terminals TO1 and TO2 of the device. During the power generation operation of the AC generator AG, 6
Diode D1, electrolytic capacitor CD, reverse conversion circuit 2
Constitutes a voltage source inverter. The control power supply circuit 4 for starting includes a transistor QC, a reactor LCH, a diode DCH
, And a battery BATT. The boost chopper circuit is driven when the power generator is started, and applies a desired DC voltage to the electrolytic capacitor CD. At this time, the bridge circuit of the transistors QR1 to QR6 of the rectifier circuit 1 receives the control pulse S1 from the control circuit 5, performs an inverter operation, converts this DC voltage into a three-phase AC voltage, and supplies it to the AC electric machine AG. Thus, the AC electric machine AG performs an electric motor operation, and starts the engine EG. The boost chopper circuit continues the chopper operation until the speed of the engine EG reaches a predetermined speed. When the speed of the engine EG reaches a predetermined speed, the starting control power supply circuit 4 stops operating, and the reverse conversion circuit 2 starts reverse conversion operation. The starting control power supply circuit 4, the electrolytic capacitor 3, and the bridge circuit of the transistors QR1 to QR6 constitute a voltage type inverter at the time of starting the apparatus.
昇圧チョッパ回路は、トランジスタQCがOFFされてい
る時は、電解コンデンサCDとバッテリBATTに対して、第
９図に示す接続となり、電流は流れない。トランジスタ
QCが制御回路５から制御パルスS3を受けて、ONすると、
第10図に示す如く、リアクトルLCHの両端にバッテリBAT
Tの電圧Ｅが印加され電流ｉが流れる。この電流ｉが流
れている間に、トランジスタQCがOFFすると、第11図に
示す如く、電流ｉは電解コンデンサCDを充電するように
転流する。この第９図と第10図に示す動作が繰り返され
てバッテリBATTから電解コンデンサCDにエネルギーが供
給される。When the transistor QC is turned off, the boost chopper circuit is connected to the electrolytic capacitor CD and the battery BATT as shown in FIG. 9, and no current flows. Transistor
When QC receives the control pulse S3 from the control circuit 5 and turns on,
As shown in FIG. 10, a battery BAT is provided at both ends of the reactor LCH.
A voltage E of T is applied and a current i flows. When the transistor QC is turned off while the current i is flowing, the current i is commutated to charge the electrolytic capacitor CD as shown in FIG. The operations shown in FIGS. 9 and 10 are repeated to supply energy from battery BATT to electrolytic capacitor CD.
このように、従来のエンジン式発電装置はエンジンEG
を始動させるための専用の始動用制御電源回路４を必要
としているので、その分、部品が増えて回路が複雑化
し、装置が大形化するという問題があり、更に、主回路
の直流回路正極母線ＰとバッテリBATTの正極、また、負
極母線ＮとバッテリBATTの負極が各々異電位となってい
るので、制御電源をバッテリBATTから生成しようとして
もコモンをとりにくいという問題があった。As described above, the conventional engine-type power generator is
Requires a dedicated starting control power supply circuit 4 for starting the power supply, so that the number of parts increases, the circuit becomes complicated, and the size of the device becomes large. Since the bus P and the positive electrode of the battery BATT, and the negative bus N and the negative electrode of the battery BATT have different potentials, there is a problem that it is difficult to take a common even if the control power is generated from the battery BATT.
本発明は上記問題を解消するためになされたもので、
専用の始動用制御電源回路を省くことができ、従来に比
し、部品点数を低減して回路構成を簡素にすることがで
き、その分、装置の低兼、小形化を図ることができるエ
ンジン式発電装置を提供することを目的とする。The present invention has been made to solve the above problems,
An engine that can eliminate the dedicated control power supply circuit for starting, reduces the number of parts compared to the conventional one, simplifies the circuit configuration, and reduces the size and size of the device accordingly. It is an object of the present invention to provide a power generation device.
本発明は上記目的を達成するため、請求項１では、エ
ンジンによって駆動される交流発電機と、逆変換機能を
有し上記交流発電機の交流出力を整流する整流回路と、
この整流回路の直流端子間に接続された平滑用コンデン
サと、この平滑用コンデンサの端子に直流側端子を接続
された逆変換回路と、この逆変換回路の交流側端子と装
置出力端子との間に挿入されたLCフィルタ回路と、エン
ジン始動用直流電圧源とを備えるものにおいて、上記エ
ンジン始動用直流電圧源は、その一方の極を上記平滑用
コンデンサの一方の端子側に同極接続されるとともに他
方の極はエンジン始動時に閉路されるスイッチを介して
上記LCフィルタ回路を構成するリアクトルの上記装置出
力端子側に接続され、エンジン始動時、上記整流回路は
逆変換駆動され、上記逆変換回路の上記リアクトルと上
記平滑用コンデンサの一方の端子側との間にあるスイッ
チング素子がチョッパ駆動される構成とした。To achieve the above object, the present invention provides an AC generator driven by an engine, a rectifier circuit having an inversion function and rectifying an AC output of the AC generator,
A smoothing capacitor connected between the DC terminals of the rectifier circuit, an inverting circuit in which the DC side terminal is connected to the smoothing capacitor terminal, and an inverting circuit between the AC side terminal and the device output terminal of the inverting circuit. And an engine start DC voltage source, wherein one end of the engine start DC voltage source is connected to one terminal of the smoothing capacitor. At the same time, the other pole is connected to the device output terminal side of the reactor constituting the LC filter circuit via a switch that is closed at the time of engine start, and at the time of engine start, the rectifier circuit is driven by reverse conversion, and the reverse conversion circuit is driven. The switching element between the reactor and one terminal of the smoothing capacitor is driven by a chopper.
請求項２では、エンジンによって駆動される直流発電
機と、この直流発電機に接続された逆変換回路と、この
逆変換回路の交流側端子と装置出力端子との間に挿入さ
れたLCフィルタ回路と、エンジン始動用直流電圧源とを
備え、上位逆変換回路はフライホイルダイオードを有す
るスイッチング素子をブリッジ接続して構成され、上記
エンジン始動用直流電圧源は、その一方の極を上記直流
発電機の一方の出力端子側に同極接続されるとともに他
方の極はエンジン始動時に閉路されるスイッチを介して
上記LCフィルタ回路を構成するリアクトルの上記装置出
力端子側に接続され、エンジン始動時、上記逆変換回路
の上記リアクトルと上記直流発電機の一方の出力端子側
との間にあるスイッチング素子がチャッパ駆動される構
成とした。According to claim 2, a DC generator driven by the engine, an inverse conversion circuit connected to the DC generator, and an LC filter circuit inserted between an AC side terminal of the inverse conversion circuit and a device output terminal. A DC voltage source for starting the engine, and the higher-order reverse conversion circuit is configured by bridge-connecting a switching element having a flywheel diode, and the DC voltage source for starting the engine has one pole thereof connected to the DC generator. The other pole is connected to the device output terminal side of a reactor constituting the LC filter circuit via a switch that is closed at the time of starting the engine, and the other pole is connected to the output terminal side of the reactor. A switching element between the reactor of the inverting circuit and one output terminal of the DC generator is driven by a chopper.
請求項３では、直流発電機の出力端子間に、平滑用コ
ンデンサが挿入されている構成とした。In claim 3, a smoothing capacitor is inserted between the output terminals of the DC generator.
本発明では、バッテリの一方の極を、主回路における
直流回路の一方の母線と同極接続するとともに他方の極
はエンジン始動時に閉路されるスイッチを介してLCフィ
ルタ回路を構成するリアクトルの装置出力端子側に接続
したので、エンジン始動時、上記逆変換回路の上記リア
クトルと上記直流回路の一方の母線（平滑用コンデンサ
の一方の端子側）との間にあるスイッチング素子をチョ
ッパ駆動させることにより、制御された直流電圧の平滑
用コンデンサに与えることができ、前記した従来の専用
のチョッパ回路を省くことができる。In the present invention, one pole of the battery is connected to the same pole as one bus of the DC circuit in the main circuit, and the other pole is connected to a device output of a reactor constituting an LC filter circuit via a switch which is closed when the engine is started. Since it is connected to the terminal side, when the engine is started, the switching element between the reactor of the reverse conversion circuit and one bus of the DC circuit (one terminal side of the smoothing capacitor) is driven by a chopper, The controlled DC voltage can be applied to the smoothing capacitor, and the above-described conventional dedicated chopper circuit can be omitted.
以下、本発明の１実施例を図面を参照して説明する。 Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
第１図において、SWはスイッチであって、バッテリBA
TTは、その正極をこのスイッチSWを介してリアクトルLo
の装置出力端子TO2側に接続され、その負極を電解コン
デンサCDの負極側（負極母線Ｎ）に接続されている。こ
のスイッチSWは交流発電機AGの発電動作時はOFF状態と
される。In FIG. 1, SW is a switch, and a battery BA
TT connects the positive pole to reactor Lo through this switch SW.
The negative electrode is connected to the negative electrode side (negative bus N) of the electrolytic capacitor CD. This switch SW is turned off during the power generation operation of the AC generator AG.
この実施例のエンジン式発電装置は前記第８図の始動
用制御電源回路の昇圧チョッパ回路を有しない。他の構
成は第８図の構成と同じであるので、同一符号を付して
示してある。The engine type power generator of this embodiment does not have the boost chopper circuit of the control power supply circuit for starting shown in FIG. Other configurations are the same as those in FIG. 8, and are denoted by the same reference numerals.
この構成において、発電装置を始動する場合、即ち、
交流発電機AGをエンジンスタータとして駆動する場合、
その起動に先立ち、逆変換回路２の全トランジスタQI1
〜QI4をオフ状態に保って、制御回路５からON指令S4を
与えスイッチSWを閉にする。これにより、第４図に示す
如く、電解コンデンサCDがリアクトルLo、トランジスタ
QI3に接続されているダイオードD2の通してバッテリBAT
Tから図示極性に充電され、電解コンデンサCDの端子電
圧がバッテリBATTの電圧Ｅまで上昇する。In this configuration, when the power generator is started,
When driving the AC generator AG as an engine starter,
Prior to the activation, all the transistors QI1 of the inverse conversion circuit 2
QQI4 is kept in the OFF state, the ON command S4 is given from the control circuit 5, and the switch SW is closed. As a result, as shown in FIG. 4, the electrolytic capacitor CD is connected to the reactor Lo and the transistor
Battery BAT through diode D2 connected to QI3
Charged from T to the polarity shown, the terminal voltage of the electrolytic capacitor CD rises to the voltage E of the battery BATT.
このようにして、バッテリBATTを初期充電したのち、
逆変換回路２のトランジスタQI1〜QI4のうちのトランジ
スタQI4だけをON/OFF駆動して昇圧チョッパ動作を行な
わせる。Thus, after the battery BATT is initially charged,
Only the transistor QI4 of the transistors QI1 to QI4 of the inverse conversion circuit 2 is turned on / off to perform the step-up chopper operation.
以下に、第５図、第６図および第７図を参照して、こ
の昇圧チョッパ動作を説明する。なお、第７図はリアク
トルLoを流れる電流ILOの波形を示しており、この電流
波形において、ＥはバッテリBATTの電圧、VCDは電解コ
ンデンサCD、ｌはリアクトルLoのインダクタンスであ
る。Hereinafter, the boost chopper operation will be described with reference to FIG. 5, FIG. 6, and FIG. FIG. 7 shows the waveform of the current I LO flowing through the reactor Lo. In this current waveform, E is the voltage of the battery BATT, V CD is the electrolytic capacitor CD, and l is the inductance of the reactor Lo.
トランジスタQI4をONすると、第５図に示す如く、バ
ッテリBATTの正極→リアクトルLo→トランジスタQI4→
バッテリBATTの負極の電流を電流Ionが流れ，リアクト
ルLoにエネルギーが蓄積される。次いでトランジスタQI
4をOFFすると、第６図に示す如く、バッテリBATTの正極
→リアクトルLo→トランジスタQI3に逆並列のダイオー
ドD2→電解コンデンサCD→バッテリBATTの負極の回路を
電流Ioffが流れ、電解コンデンサCDが充電される。この
動作が繰り返えされて制御された直流電圧が電解コンデ
ンサCDに供給される。このチョッパ動作が開始される
と、整流回路１のトランジスタQR1〜QR6のブリッジ回路
はインバータ動作を行ない、上記直流電圧を３相交流電
圧に変換して交流電機Ｇに供給する。これにより交流電
機AGが電動機動作を行ない、エンジンEGを始動させる。
エンジンEGの速度が所定速度に達すると、スイッチSWは
OFFされ、トランジスタQI4はチョッパ動作を停止すると
ともに、トランジスタQR1〜QR6のブリッジ回路はインバ
ータ動作を停止し、逆変換回路２が逆変換動作を開始す
る。When the transistor QI4 is turned on, the positive electrode of the battery BATT → reactor Lo → transistor QI4 →
The current Ion flows through the negative current of the battery BATT, and energy is accumulated in the reactor Lo. Then the transistor QI
When 4 is turned off, as shown in Fig. 6, the current Ioff flows through the circuit of the positive electrode of the battery BATT → the reactor Lo → the diode D2 anti-parallel to the transistor QI3 → the electrolytic capacitor CD → the negative electrode of the battery BATT, and the electrolytic capacitor CD is charged. Is done. This operation is repeated to supply a controlled DC voltage to the electrolytic capacitor CD. When the chopper operation is started, the bridge circuit of the transistors QR1 to QR6 of the rectifier circuit 1 performs an inverter operation, converts the DC voltage into a three-phase AC voltage, and supplies the AC voltage to the AC machine G. Thus, the AC electric machine AG performs an electric motor operation, and starts the engine EG.
When the speed of the engine EG reaches a predetermined speed, the switch SW is
When turned off, the transistor QI4 stops the chopper operation, the bridge circuit of the transistors QR1 to QR6 stops the inverter operation, and the reverse conversion circuit 2 starts the reverse conversion operation.
このように、本実施例では、交流発電機AGをエンジン
スタータとしてエンジンEGを始動する場合に、逆変換回
路２の出力回路に挿入してあるLCフィルタのリクトルLo
と、逆変換回路２の１つのトランジスタQI4と１つのダ
イオードＤとで昇圧チョッパ回路を形成せしめ、この昇
圧チョッパ回路を通してバッテリBATTから電解コンデン
サCDへ制御された直流電力を供給するので、前記した専
用の昇圧チョッパ回路（トランジスタQC、リアクトルLC
H、ダイオードDCHからなる）を省くことができる。As described above, in the present embodiment, when starting the engine EG with the AC generator AG as the engine starter, the inductor Lo of the LC filter inserted in the output circuit of the inverse conversion circuit 2 is used.
And one transistor QI4 and one diode D of the inverse conversion circuit 2 to form a boost chopper circuit, and supply controlled DC power from the battery BATT to the electrolytic capacitor CD through the boost chopper circuit. Boost chopper circuit (transistor QC, reactor LC)
H, consisting of a diode DCH).
また、本実施例では、バッテリBATTの電極と主回路母
線とが同電位となるので、制御回路も簡単な構造にする
ことができる。Further, in this embodiment, since the electrode of the battery BATT and the main circuit bus have the same potential, the control circuit can have a simple structure.
第１図の実施例は、交流発電機AGを用いるエンジン式
発電装置であるが、本発明は、第２図、第３図に示す如
く、直流発電機DGを用いるエンジン式発電装置に実施し
て、同様の効果を得ることができる。The embodiment shown in FIG. 1 is an engine type power generator using an AC generator AG, but the present invention is applied to an engine type power generator using a DC generator DG as shown in FIGS. Thus, a similar effect can be obtained.
なお、上記各実施例では、始動用直流電圧源として、
バッテリBATTを用いているが、他の直流電圧源であって
もよい。In each of the above embodiments, the starting DC voltage source is
Although the battery BATT is used, another DC voltage source may be used.
また、上記各実施例では、バッテリBATTと電解コンデ
ンサCDの負極同士を接続しているが、、正極同士を接続
しても、同様の効果を得ることができる。In the above embodiments, the negative electrode of the battery BATT and the negative electrode of the electrolytic capacitor CD are connected. However, the same effect can be obtained by connecting the positive electrodes.
本発明は以上説明した通り、始動用直流電圧源を、始
動時ONされるスイッチを介して、主回路にダイレクトに
接続し、この接続により選択される主回路のスイッチン
グ素子とダイオードと、リアクトルを利用して上記始動
用直流電圧源から始動用の電力を供給する構成としたこ
とにより、主回路とは別の始動用制御電源回路を設ける
必要がないので、従来に比し、部品数を低減して、簡素
な回路構成とすることができ、その上、始動用直流電圧
源の電極と主回路の直流母線とを同電位にすることがで
きるので、制御回路も簡単な構造とすることができ、そ
の分、装置の価格を安価にすることができる。As described above, the present invention directly connects the starting DC voltage source to the main circuit via the switch that is turned on at the time of starting, and connects the switching element, the diode, and the reactor of the main circuit selected by this connection. Since the starting DC voltage source is used to supply starting power, it is not necessary to provide a starting control power supply circuit separate from the main circuit. Then, a simple circuit configuration can be achieved, and furthermore, since the potential of the electrode of the starting DC voltage source and the DC bus of the main circuit can be the same, the control circuit can also have a simple structure. It is possible to reduce the price of the device accordingly.
第１図、第２図および第３図は各々本発明の実施例を示
す回路図、第４図、第５図および第６図は上記実施例の
エンジン始動時の動作を説明するための回路図、第７図
は上記実施例のエンジン始動時にリクトルに流れる電流
の波形図、第８図は従来のエンジン式発電装置の回路
図、第９図、第10図および第11図は上記従来例における
昇圧チョッパ回路の動作を説明するための回路図であ
る。 １……整流回路、２……逆変換回路、 ３……電解コンデンサCD、BATT……バッテリ、 SW……スイッチ、Lo……リアクトル、 Co……コンデンサ、 TO1、TO2……装置出力端子、 UO1、UO2……逆変換回路の交流出力端子、 QI1〜QI4……トランジスタ、 QR1〜QR6……トランジスタ、 D1,D2……ダイオード、 AG……交流発電機、DG……直流発電機、FIGS. 1, 2, and 3 are circuit diagrams showing an embodiment of the present invention, respectively, and FIGS. 4, 5, and 6 are circuits for explaining the operation at the time of starting the engine in the above embodiment. FIG. 7 is a waveform diagram of a current flowing through the reactor at the time of starting the engine of the above embodiment, FIG. 8 is a circuit diagram of a conventional engine-type power generator, FIG. 9, FIG. 10 and FIG. FIG. 3 is a circuit diagram for explaining the operation of the boost chopper circuit in FIG. 1… Rectifier circuit, 2… Reverse conversion circuit, 3… Electrolytic capacitor CD, BATT… Battery, SW… Switch, Lo… Reactor, Co… Capacitor, TO1, TO2 ... Device output terminal, UO1 , UO2: AC output terminal of the reverse conversion circuit, QI1 to QI4: Transistor, QR1 to QR6: Transistor, D1, D2: Diode, AG: AC generator, DG: DC generator,
───────────────────────────────────────────────────── フロントページの続き (72)発明者 熊倉 弘隆 神奈川県横浜市神奈川区宝町２番地 日 産自動車株式会社内 審査官 渡邊 真 (56)参考文献 特開 昭63−302776（ＪＰ，Ａ) 特開 平２−87999（ＪＰ，Ａ) 特表 昭61−500763（ＪＰ，Ａ) (58)調査した分野(Int.Cl.6，ＤＢ名) F02N 11/00 ──────────────────────────────────────────────────続 き Continuation of front page (72) Inventor Hirotaka Kumakura 2 Takaracho, Kanagawa-ku, Yokohama-shi, Kanagawa Nissan Motor Co., Ltd. Examiner Shin Watanabe (56) Reference JP-A-63-302776 (JP, A) JP-A-2-87999 (JP, A) Special table Sho-61-500763 (JP, A) (58) Fields studied (Int. Cl. 6 , DB name) F02N 11/00
Claims (3)
と、逆変換機能を有、上記交流発電機の交流出力を整流
する整流回路と、この整流回路の直流端子間に接続され
た平滑用コンデンサと、この平滑用コンデンサの端子に
直流側端子を接続された逆変換回路と、この逆変換回路
の交流側端子と装置出力端子との間に挿入されたLCフィ
ルタ回路と、エンジン始動用直流電圧源とを備え、上記
逆変換回路はフライホイルダイオードを有するスイッチ
ング素子をブリッジ接続して構成され、上記エンジン始
動用直流電圧源は、その一方の極を上記平滑用コンデン
サの一方の端子と同極接続されるとともに他方の極はエ
ンジン始動時に閉路されるスイッチを介して上記LCフィ
ルタ回路を構成するリアクトルの上記装置出力端子側に
接続され、エンジン始動時、上記整流回路は逆変換駆動
され、上記逆変換回路の上記リアクトルと上記平滑用コ
ンデンサの一方の端子側との間にあるスイッチング素子
がチョッパ駆動されることを特徴とするエンジン式発電
装置。An AC generator driven by an engine, a rectifier circuit having an inverse conversion function and rectifying an AC output of the AC generator, and a smoothing capacitor connected between DC terminals of the rectifier circuit. A reverse conversion circuit in which a DC terminal is connected to a terminal of the smoothing capacitor; an LC filter circuit inserted between the AC side terminal of the reverse conversion circuit and the device output terminal; and a DC voltage source for starting the engine. The inverting circuit is configured by bridge-connecting a switching element having a flywheel diode, and the DC voltage source for starting the engine has one pole connected to the same pole as one terminal of the smoothing capacitor. The other pole is connected to the reactor output terminal side of the reactor constituting the LC filter circuit via a switch that is closed when the engine is started, and the engine is started. An engine-type power generator, wherein the rectifier circuit is driven in reverse conversion during operation, and a switching element between the reactor of the reverse conversion circuit and one terminal side of the smoothing capacitor is chopper-driven. .
と、この直流発電機に接続された逆変換回路と、この逆
変換回路の交流側端子と装置出力端子との間に挿入され
たLCフィルタ回路と、エンジン始動用直流電圧源とを備
え、上記逆変換回路はフライホイルダイオードを有する
スイッチング素子をブリッジ接続して構成され、上記エ
ンジン始動用直流電圧源は、その一方の極を上記直流発
電機の一方の出力端子側に同極接続されるとともに他方
の極はエンジン始動時に閉路されるスイッチを介して上
記LCフィルタ回路を構成するリアクトルの上記装置出力
端子側に接続され、エンジン始動時、上記逆変換回路の
上記リアクトルと上記直流発電機の一方の出力端子側と
の間にあるスイッチング素子がチョッパ駆動されること
を特徴とするエンジン式発電装置。2. A DC generator driven by an engine, an inverse conversion circuit connected to the DC generator, and an LC filter circuit inserted between an AC terminal of the inverse conversion circuit and a device output terminal. And a DC voltage source for starting the engine, wherein the inverse conversion circuit is configured by bridge-connecting a switching element having a flywheel diode, and the DC voltage source for starting the engine has one pole thereof connected to the DC generator. The other pole is connected to the device output terminal side of a reactor constituting the LC filter circuit via a switch that is closed at the time of starting the engine, and the other pole is connected to the output terminal side of the reactor. An engine wherein a switching element between the reactor of the inverting circuit and one output terminal of the DC generator is chopper-driven. Power generator.
ンサが挿入されていることを特徴とする請求項２記載の
エンジン式発電装置。3. The engine-type power generator according to claim 2, wherein a smoothing capacitor is inserted between output terminals of the DC generator.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2337331A JP2971568B2 (en) | 1990-11-30 | 1990-11-30 | Engine power generator |
| US07/791,181 US5237260A (en) | 1990-11-30 | 1991-11-13 | Engine-operated generator system |
| EP91120061A EP0488108A1 (en) | 1990-11-30 | 1991-11-25 | Engine-operated generator system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2337331A JP2971568B2 (en) | 1990-11-30 | 1990-11-30 | Engine power generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04203471A JPH04203471A (en) | 1992-07-24 |
| JP2971568B2 true JP2971568B2 (en) | 1999-11-08 |
Family
ID=18307623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2337331A Expired - Fee Related JP2971568B2 (en) | 1990-11-30 | 1990-11-30 | Engine power generator |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US5237260A (en) |
| EP (1) | EP0488108A1 (en) |
| JP (1) | JP2971568B2 (en) |
Families Citing this family (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2814863B2 (en) * | 1992-12-07 | 1998-10-27 | 日産自動車株式会社 | Generator control device |
| WO1997022176A1 (en) * | 1995-12-12 | 1997-06-19 | Solar Turbines Incorporated | Starter system for a direct drive generator |
| US6487096B1 (en) | 1997-09-08 | 2002-11-26 | Capstone Turbine Corporation | Power controller |
| US6784565B2 (en) | 1997-09-08 | 2004-08-31 | Capstone Turbine Corporation | Turbogenerator with electrical brake |
| US6870279B2 (en) * | 1998-01-05 | 2005-03-22 | Capstone Turbine Corporation | Method and system for control of turbogenerator power and temperature |
| US20040135436A1 (en) * | 1998-04-02 | 2004-07-15 | Gilbreth Mark G | Power controller system and method |
| US20040119291A1 (en) * | 1998-04-02 | 2004-06-24 | Capstone Turbine Corporation | Method and apparatus for indirect catalytic combustor preheating |
| US20020166324A1 (en) | 1998-04-02 | 2002-11-14 | Capstone Turbine Corporation | Integrated turbine power generation system having low pressure supplemental catalytic reactor |
| US6612112B2 (en) | 1998-12-08 | 2003-09-02 | Capstone Turbine Corporation | Transient turbine exhaust temperature control for a turbogenerator |
| JP4460708B2 (en) * | 2000-03-29 | 2010-05-12 | 株式会社東芝 | Permanent magnet motor control device that combines engine starter and generator |
| US6787933B2 (en) * | 2001-01-10 | 2004-09-07 | Capstone Turbine Corporation | Power generation system having transient ride-through/load-leveling capabilities |
| US6812586B2 (en) * | 2001-01-30 | 2004-11-02 | Capstone Turbine Corporation | Distributed power system |
| US7687926B2 (en) | 2002-06-06 | 2010-03-30 | Black & Decker Inc. | Starter system for portable internal combustion engine electric generators using a portable universal battery pack |
| EP1516421A2 (en) | 2002-06-06 | 2005-03-23 | Black & Decker Inc. | Starter system for portable power unit using a portable universal battery pack |
| US7989969B2 (en) | 2002-06-06 | 2011-08-02 | Black & Decker Inc. | Universal power tool battery pack coupled to a portable internal combustion engine |
| US7309928B2 (en) | 2002-06-06 | 2007-12-18 | Black & Decker Inc. | Starter system for portable internal combustion engine electric generators using a portable universal battery pack |
| CN1322652C (en) * | 2002-08-31 | 2007-06-20 | 艾默生网络能源有限公司 | Bus voltage soft actuating method in uninterrupted power source and its device |
| US20040085046A1 (en) * | 2002-11-01 | 2004-05-06 | General Electric Company | Power conditioning system for turbine motor/generator |
| US7102331B2 (en) | 2003-01-17 | 2006-09-05 | Black & Decker Inc. | Generator with dual cycloconverter for 120/240 VAC operation |
| US20040148942A1 (en) * | 2003-01-31 | 2004-08-05 | Capstone Turbine Corporation | Method for catalytic combustion in a gas- turbine engine, and applications thereof |
| US7009311B1 (en) * | 2004-08-24 | 2006-03-07 | Delphi Technologies, Inc. | Method for minimizing generator load on internal combustion engine |
| US7782626B2 (en) | 2007-02-02 | 2010-08-24 | Black & Decker Inc. | Portable power driven system with battery anti-theft apparatus |
| US8191660B1 (en) | 2009-07-01 | 2012-06-05 | Matthew White | Vehicle hybrid apparatus |
| US8672069B2 (en) * | 2009-08-25 | 2014-03-18 | Deere & Company | Hybrid vehicle with multiple electric drive systems |
| US10778123B2 (en) * | 2015-10-16 | 2020-09-15 | Kohler Co. | Synchronous inverter |
| JP6832775B2 (en) * | 2017-03-30 | 2021-02-24 | 本田技研工業株式会社 | Engine generator |
| CN108471261A (en) * | 2018-03-14 | 2018-08-31 | 同济大学 | A kind of activation system and method for digital electricity generating group |
| CN110011398B (en) * | 2019-03-15 | 2021-09-21 | 全球能源互联网研究院有限公司 | Inverter and inverter power supply |
| JP2022138996A (en) * | 2021-03-11 | 2022-09-26 | 本田技研工業株式会社 | Generator |
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| US4193111A (en) * | 1978-06-08 | 1980-03-11 | California Institute Of Technology | Unity power factor converter |
| US4330743A (en) * | 1980-07-17 | 1982-05-18 | Sundstrand Corporation | Electrical aircraft engine start and generating system |
| JPS6077656A (en) * | 1983-10-03 | 1985-05-02 | Mitsubishi Electric Corp | Defect indicating method of dc generator for vehicle |
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| US4750102A (en) * | 1986-03-20 | 1988-06-07 | Sanyo Electric Co., Ltd. | Power converting apparatus |
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| FI81465C (en) * | 1986-12-22 | 1990-10-10 | Kone Oy | Device for coupling an accumulator battery to an elevator inverter DC direct current circuit |
| JPS6430500A (en) * | 1987-07-24 | 1989-02-01 | Shinko Electric Co Ltd | Brushless starting generator exciter |
| EP0338512B1 (en) * | 1988-04-19 | 1994-09-21 | Shinko Electric Co. Ltd. | Engine driven generator |
| US4992920A (en) * | 1989-09-13 | 1991-02-12 | Davis Donald E | Regulated AC power system energized by variable speed prime mover |
-
1990
- 1990-11-30 JP JP2337331A patent/JP2971568B2/en not_active Expired - Fee Related
-
1991
- 1991-11-13 US US07/791,181 patent/US5237260A/en not_active Expired - Lifetime
- 1991-11-25 EP EP91120061A patent/EP0488108A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| US5237260A (en) | 1993-08-17 |
| EP0488108A1 (en) | 1992-06-03 |
| JPH04203471A (en) | 1992-07-24 |
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